For the sample preparation and mounting, it is crucial to avoid movement. It should involve very low-density materials such as lightweight foam where we load the sample and make sure it holds in place. The sample holder must be transparent to X-Rays, which is why a very light and low-density material is used.
The best position is a slight angle and not directly straight in order to make sure that parallel surfaces are penetrated easily by the X-Ray beam.
The scanning itself is done automatically with no user interaction after settings are adjusted even though observation from time to time is suggested. Afterward, with all the 2D images being obtained, the 3D reconstruction begins.
Tomographic reconstruction requires little intervention by the operator. The reconstruction software we developed offers many automatic corrections, which reduce and simplify the required operations needed to start the reconstruction process. As for the acquisition, reconstruction can be fully automated when a series of parts needs to be scanned.
After the sample setup, you have to launch the scan using specific settings. The X-Act software suite, provided with each RX Solutions CT system, has several modes which allow you regardless of your level of expertise to perform a scan with ease while obtaining results of the highest possible quality. After placing the component on the sample manipulator, then the scanning settings can either be done automatically or set by the operator.
The third step, the so-called post-processing step, is carried out using software such as Volume Graphics or Avizo. These will allow working on the 3D volume resulting from the reconstruction. This stage is only necessary if you want to go beyond simple visualization, to carry out measurements, quantify defects, etc... Then, a lot of analyses can be done, on all the surfaces of your samples, both external and internal.